package com.zjsru.service;

import com.zjsru.pojo.User;
import org.springframework.stereotype.Service;

@Service
public interface UserService {
    User queryUserById(Long user_Id);

    User checkLogin(String username, String password);

    void register(String username, String password);

    User queryUserByUsername(String username);

    void updateUser(User user);
}
